Dynamo-electric massage instrument.



No. 784,024. PATENTED MAR. '7, 1905. A. BARRETT & W. CONDON. DYNAMO ELECTRIC MASSAGE INSTRUMENT.

APPLICATION FILED JULY 6,1904.

Wits/wozu UNITED STATES Patented Maren '7, 1905.

PATENT OEEICE.

ALBERT BARRETT AND IVILLIAM OONDON, OF KANSAS CITY, MISSOURI.

DYNAlVlO-ELECTRIC MASSAGE INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 789,024, dated March '7, 1905.

finalisation tiled Tnlv 5, 1904. Serial No. 215,261.

To all wwwt it ntf/,y concern/ Be it known that we, ALBERT BARRETT and WILLIAM OoNDoN, citizens ot' the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Dynamo-Electric Massage Instruments, ot' which the following is a specilication.

Our invention relates to improvements in d ynamo-electric massage instruments.

The object et' our invention is to provide a massage instrument by which the liesh may be subjected to massage manipulation simultaneously with the production ot' dynamo-electric currents which are applied to the portion ot the iiesh thus manipulated.

Our invention provides, further, an instrument comprising' a handle forming an electrode, a roller-electrode rotatively mounted thereon and insulated therefrom, and a mechanism for prod ucing electro-dynamic currents actuated by the rotation ot' the roller-electrode and having said two electrodes as terminals to its circuit.

Our invention provides, further, a tubular handle forming an electrode, a magnet mounted thereon, an armature rotatively mounted on said handle in the tield ot' the magnet and provided with a suitable insulated winding, to one end ot' which the handle-electrode is electrically connected, aroller-electrode rotatively mounted on and insulated 'from said handleelectrode and electrically connected with the other end ot' said winding, and means by which the armature is rotated when the roller-electrode is rolled.

Our invention provides, further, a novel Vform of dynamo-electric machine by which a great eiticiency in the production ot' electric currents is effected.

Other novel features of construction are hereinafter fully described and claimed.

In the accompanying drawings, Figure `I is a longitudinal central sectional view, but a i'ew coils oi' the armature winding being shown. Fig. is a view similar to Fig. I, the armature, however, being shown in elevation. Fig. 3 is a side elevation View, a por- Fig.

tion of the handle being broken away.

4 is a cross-section on the line a 7) ot' Fig. I, the winding' on the armature being omitted. Fig, 5 is a cross-section taken on the dotted line c Z ot' Fig. I, a portion ot' the adjacent head of the handle being' broken away. Fig. 6 is an end elevation view ot the roller-electrode. Fig. '7 is an inner end view et the head 3.

Similar characters of reference denote similar parts.

The instrument comprises i'our principal parts-#the handle-electrode, the roller-electrode, the permanent magnet, and the armature. Thehandlecomprisesacylindrical tube l, ot' coiili'i(:ti\'e material, such as brass or aluminium, in the ends of which are secured in any suitable manner, as by soldering, the circular plates or heads 2 and Each ot said heads is provided on its inner end with a circular shoulder 4I. A magnetizcd cylindrical steel-tube magnet 5 has titted in its respective ends the shoulders a, said shoulders being' concentric with the tube I and themagnet 5. The steel tube is slit lengthwise, opposite edges N and S ot' said slit portion being oppositely polarized. The tube 5 is ot' hardened steel and forms a permanent magnet in which the armature is rotatable. The armature comprises a sott-iron core 6 ol any desirable form, preferably that o't' the ordinary Siemens type, said core having at one end an axial extension 7, rotativcly mounted in a central axial recess S in the head 3. Upon the other end of the arniature-core (3 is secured a disk t), lia-wing a cylindrical axial extension Il), rotatively mounted and extending through an axial hole in the head 2. In the axis of rotation of the core t3 in a central longitudinal hole provided in the disk t) and extension I() is mounted a threaded rod or screw II, disposed in and rotatable with an internally-screw-threaded sleeve 1,2, ol"l insulating material, said sleeve being mounted in the hole through the disk 9 and rotatable with said disk and the armature-core 6. The inner end of the sleeve IQ is provided with a peripheral flange 13, which bears against the inner end ot' the disk 9. The inner end oi' the rod ll has a head let which bears upon the inner end of the sleeve 12.

The core 6 has l wound on it an insulated conductive winding l 15, one end ot' which is connected to the rod g serving as a handle and the rotatable one tor 11 and the other end tothe core 6.

electrodes electrically insulated from each other, one rotatable relative to the other, one

The windl rolling over the l'lcsh, and a magneto-electric ing is electrically connected with the tube 1 device comprising two members, one a perthrough the core 6, disk 9, extension 10, and

head 2, all oi' which are of conductive material. The winding 15 has its principal convolutions disposed parallel with the slit portion ot' the magnet 5.

The roller-electrode comprises two conductive circular disks or plates 16 and 17, provided each with a central hole through which extends the rod 11. Between the disk or member 17 and the extension 10 is a collar 18, ot'insulating material, mounted on the rod 11. ',ihe member or disk 16 has its central hole screw-threaded to tit the rod 11. A lock-nut 19 is mounted on the rod 11 and bears upon the outer side of the member 16. Between said two members 16 and 17 is clamped an absorbent conductive disk 20. 1f desired` this disk may be omitted, as may be one ot" the members 16 or 17. The members 16 and 17 are preferably ot' non-absorbent material, but they may be ot' an absorbent material, such as carbon. When non-absorbent material is employed, aluminium ist he preferable material to use.

In operating our invention the tube 1 is grasped in one hand and the roller-electrode, comprising the members 16, 17, and 20, is rolled over the portion of the iiesh to be massaged. By moving the handle to and fro the roller-electrode is caused to rotate, thus rotating', through the intermediacy ot' the rod 11, the core 6 and disk 9. rlhe winding 15 passing through the lield of magnetic force between the poles N and S generates in said winding an alternating current which passes, by means ot' the rod 11, members 16 and 17, and absorbent disk 20, to and through the l'leshof the operator to the tube 1, and thence by way of the head 2, extension 10, disk 9, and core 6 to the winding 15. The absorbent disk 20, which may be olE telt or similar absorbeiit material, should be lirst moistcned in slightly-acidulatcd water or water holding' salt in solution.

By constructing the magneto-electric meehanism as described a very etticient and compact deviceis attained. The armature being disposed with its axis et' rotation coincidental with the axis ot' the cylindrical magnet, the winding15 on the armature is always equidistant from the center of the magnet and cuts the lines of inagnetic force during every part of its revolution, and with a magnet ot this form no sott-iron pole-pieces are required.

Uur invention may be variously moditied without departing from its spirit.

I'Iaving thus described our invention, what we claim, and desire to secure by Letters Patent, isY

1. A massage instrument comprising two manent magnet, and the other a magnetizable body having a suitable insulated winding located in the ield ot the permanent magnet,

the winding being connected respectively at its ends with the two electrodes, and one ot said members mounted ou and rotatable with the rotatable electrode, and the other member mounted on the other electrode.

2. A massage instrument comprising a handle forming an electrode, a permanent magnet carried thereby, an armature rotatively mounted on the handle in the lield ol! the magnet and provided with a suitable insulated winding one end of which is electrically connected to the electrode, and a rotary electrode connected to the other end ol the winding and carried by but insulated lrom the armature.

3. Amassageinstrun'ientcomprisingatubular electrode provided with heads in the ends; a permanent magnet carried by said electrode, an armature rotatively mounted in the said heads and in the lield oi' the magnet and provided with a suitable insulated winding one end ol' which is electrically connected with the electrode, and a roller-electrode inoimted on and insulated from the armature and connected electrically with the other end el said winding.

4. A massage instrumentcomprisinga magneto-electric device consisting ot two members, one a magnet and the other an armature, one member being rotatable relative to the other, and one member provided with a suitable insulated winding, a roller-electiode earried by butinsulated 'from the rotatable member and connected with one end ot said winding, and a handle-electrode carrying the other member 'and electrically connected with the other end otl said winding.

Amassageinstrumentcomprisingatubular handle having an outer covering ol conductive material, a tubular magnet slotted along' its full length and disposed in said handle, an armature rotatively mounted in said magnet and in said handle and provided with a suitable insulated winding one end ol which is electrically connected with the conductive covering olt the handle, and a roller of conductive material connected electrically with the other end ot' said winding and mounted on, insulated Vt'roni and rotatable with the armature.

6. Amassageinstrumentcomprisingatubular handle having two heads, a tubular permanent magnet slotted along its Full length, an armature rotatively mounted in said heads and in the lield oli said magnet and provided with a suitable insulated winding connected electrically at one end with said handle, and a IOO IIS

roller-electrode mounted on, insulated from and rotatable With said armature and connected electrically with the other end ot' said winding.

7. A massage instrument comprising a tubular handle consisting of a tube otl conductive material havingl heads in its ends one ot' which is provided with a hole therethrough, a tubular permanent magnet in said handle, an armature rotatively mounted in said heads in the field ot' said magnet and extending through the hole in one head, and provided with a suitable insulated winding connected'electrically with the said tube of the handle, and a roller ot' conductive material insulated from but rotatable with said portion of the armature which extends through one head, and electrically connected with the other end otl said winding.

8. A massage instrument comprising a conductive tube provided with heads in its ends, said heads being provided with axial holes, each head having an annular inner shoulder disposed concentric with said axial holes, a tubular permanent magnet slotted along its full length a'nd having its inner peripheny litted to said shoulders and supported thereon, an armature rotatively mounted in said holes in said heads and having' a portion ot' magnetizable material located in the lield of the magnet, and having' a suitable insulated winding, one end of which is electrically connected with the conductive tube, and a roller ot' conductive material insulated from and rotatable with the armature and connected electrically with the other end otl said winding'.

9. A massage instrument comprising a tubular handle otl conductive material consisting of a tube having two heads, a cylindrical tubular permanent magnet slotted along its full length and disposed concentrically Within said handle, an armature rotatively mounted in said heads with its axis et' rotation coincidental .with the axis of the permanent magnet and having an insulated winding' one end of which is electrically connected with the tubular handle, a roller-support disposed in the axial ccnter o't' and carried by said armature but insulated therefrom, and connected with the other end otl said winding, and a roller mounted on and rotatable with said roller-supportoutside the handle.

10. A massage instrument comprising a tubular handle the exterior of which is o'tl conductive material, a magnet in said handle, an armature rotatively mounted in said handle in the ield ot' the magnet and provided with a suitable winding connected at one end with the conductive exterior et' the handle, and a roller-electrode having' a portion of its body or' conductive non-absorbent material and a portion ot' absorbent conductive material, said roller-electrode being' mounted on and rotatable with but insulated from the armature, the cond uctive portions of said roller-electrode being electrically connected with the other end of said winding.

11. A massage instrument comprising a tubular conductive handle having heads in its ends, a permanent magnet mounted in said handle, an armature rotatively moun ted inl said handle-heads in the lield ot' the magnet and provided with a suitable insulated winding' connected electrically at one end with the tubular handle, and a roller-electrode mounted on and insulated from the armature and consisting of two non-absorbent conductivemembers, and an absorbent conductive member clamped between said non-absorbent members, said roller members being electrically connected with the other end otl said armaturewinding.

12. A massage instrument comprising a tubular handle et conductive material consisting ot' a tube having two heads, a lengthwise-slotted tubular permanent magnet mounted in said handle, an armature rotatively supported in said heads in the iield ot' the magnet and previded with a conductive insulated winding one end ol which is electrically connected with the handle, an axial roller-support mounted on and insulated from the arlnature and rotatable therewith and connected with the other end otl said winding` and a roller-electrode comprising two conductive non absorbent plates mounted on and rotatablewith the roller-sup port, and an absorbent conductive member clamped between said plates.

13. A niagneto-clcctric device comprising a cylindrical tubular magnet slotted lengthwise its full length, an armature rotatively mounted in said magnetand having its axis of rotation in the axis of the magnet, an insulated winding on the armature, a handle-electrode supporting' the magnet and armature and connected electrically to one end of said winding, a rotary electrode connected electrically to the, other end of said winding, and means for rotating' the armature when the rotary electrode is rotated.

1A. A magneto-electric device comprising a tubular cylindrical permanent magnet slotted lengthwise its tull length, an armature rotatively mounted in said magnet with its axis ol' rotation in the axis ot the magnet, an insulated winding on the armature, a handle-electrode supporting the magnet and armature and connected electrically to one end of said winding, a rotary electrode connected electrically to the other end of said winding, and means t'or rotating the armature when the rotary electrode is rotated.

15. A magneto-electric device comprising a cylindrical tubular permanent magnet slotted its full length, two end plates secured to the ends ot said magnet, an armature rotatively mounted in said magnet in said plates, the axis ot' rotation otl the armature being the axis et the magnet, an insulated winding on the arma- IOS ywhen the rotary electrode is rotated.

16. A massage instrument comprising a tubular handle having heads on the ends of a tubular body, the body being of conductive material, a cylindrical tubular magnet mounted in said handle consisting; ot' a hardened mag netized tube slotted its full length, an armature rotatively mounted in said heads with its axis of rotation in the aXis of the cylindrical magnet and provided with a suitable insulated winding one end of which is electrically connected with the body of the handle, a rod insulated from but mounted in the axial center of the armature and rotatable therewith and connected electrically with the other end ot' said winding, and a roller-electrode of conductive material mounted on and rotatable with said rod.

17. A magneto-electric machine comprising a cylindrical steel tube slit lengthwise, opposite edges of the slit portion being oppositely polarized, an armature rotatively mounted in said tube with its axis of rotation in the axis of the tube, the armature having a sott-iron core and insulated generating-wires on said core disposed parallel with said slit, an insulated winding on the armature, a handle-electrode supporting the magnet and armature and connected electrically to one end of said winding, a rotary electrode connected electrically to the other end ol said winding, and means for rotating' the armature when the rotary electrode is rotated.

18. Amassageinstrumenteoinprisinga handleelectrode, a roller -electrode rotatively mounted thereon and insulated therefrom, a. permanent inagnet mounted on the handle, an armature rotatively mounted on the handle in the iield ol the magnet and provided with a suitable insulated windingoneend ol which is electrically connected with the handle-electrode, and the other end connected electrically with the roller-electrode, and means by which the armature is rotated when the roller-electrode is rotated.

19. A'massageinstrui'nentcomprisingaliandle-eleetrode adapted to be grasped by the hand and moved to and Alro without rotation, a rollerelectrode disposed adjacent one end of and rotatively mounted on and insulated from said handle-electrode, whereby when the haudleis moved to and tro the roller when restingupon the flesh will be caused to roll, an electro-dynamic mechanism carried by the handle and having' the said two electrodes as termii'ials ol.5 its circuit, and means by which said dynan'ioelectric mechanism is actuated when the rollereleetrede is rotated.

Vln testimony whereof we allix our signatures in presence ol two witnesses.

lVitnesses:

WARREN D. llousn, HENRY F. tosti. 

